Chemical Elements Crossword Puzzle

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Across
  1. 1. The first of the transition metals, the name of this element derives from 'Scandia', the Latin name for Scandinavia.
  2. 6. A metal which produces brilliant reds in fireworks and flares, it was first discovered in Stronian in Scotland.
  3. 9. The chemical symbol for this element comes from the element's historical name, stibium.
  4. 11. The name of this metal comes from the Greek 'barys', meaning heavy. Compounds of this metals are used to help identify digestive disorders in patients.
  5. 13. A green-yellow toxic gas that was used as a chemical weapon in the First World War.
  6. 17. A highly reactive alkali metal used in atomic clocks, which are accurate to 1 second in 15 million year.
  7. 18. One of only three magnetic metals, its name is derived from the German word 'kobald', meaning goblin.
  8. 19. Discovered by Joseph Priestly in 1774, this element is a product of photosynthesis.
  9. 22. Discovered in 1774, this solid metal has an atomic number of 25 and an atomic mass of 55.
  10. 25. Shares a name with Superman’s home planet.
  11. 26. One of the twelve elements with a single letter chemical symbol.
  12. 27. A halogen and one of only two elements that are liquid at room temperature.
  13. 30. A well-known poison.
  14. 32. The chemical symbol for this element comes from its original name natrium.
  15. 35. This metallic element has a long history of being used in coins. The US 5-cent is nicknamed for this element.
  16. 36. Used to make the alloy bronze, this metal is used in electrical wiring and pipes due to its unreactive nature.
  17. 41. This transition metal is as strong as steel but much less dense. It is used in joint replacements.
  18. 43. a toxic metal with an atomic number of 42. Dr Squillaci’s favourite.
  19. 44. Objects of this element, dating from around 3500 BC, have been found in Egypt. An essential element in the blood.
  20. 47. Derived from the Latin name for France (Gallia), this metal melts at 30˚C.
  21. 48. Known to humans since prehistoric times, this Group 6 element is mentioned 15 times in the Bible.
  22. 49. Discovered in 1801 by Charles Hatchett, its name comes from Niobe from Greek mythology, who was the daughter of king Tantalus.
  23. 50. A Nobel gas discovered in July 1898 by William Ramsay and Morris Travers at University College London and obtained by extraction from air.
  24. 51. The least reactive alkali metal.
  25. 52. A halogen which has a name derived from the Greek word 'iodes' meaning violet.
  26. 53. This element’s name is derived from Ruthenia, the Latin name for Russia.
  27. 55. A transition metal at the end of the alphabet.
Down
  1. 2. A silvery-white metal that burns with a bright light.
  2. 3. Plating with this transition metal can give a polished mirror finish to steel.
  3. 4. this metallic element has an atomic number of 23.
  4. 5. This element has an atomic number of 15; its name means bringer of light in Greek.
  5. 7. A natural semi-precious gemstone which, in its colourless form, resembles diamonds. If ordered alphabetically, this element would be last.
  6. 8. A poisonous metal often used in batteries. It has an atomic number of 48.
  7. 10. The first four letters of this element are consonants. It was discovered in 1794 and is used in radar technology.
  8. 12. Element with 6 protons, 6 neutrons and 6 electrons.
  9. 14. The lightest element.
  10. 15. A shiny, silvery-white metal that resists corrosion and is named after the Greek goddess of wisdom, Pallas.
  11. 16. The second-most abundant element in the Earth’s crust, useful for making microchips.
  12. 20. Group 4 element named for a European country.
  13. 21. The gemstones beryl and emerald contain this Group 2 element.
  14. 23. A metal discovered in 1863, its name comes from the Latin 'indicium', meaning violet or indigo.
  15. 24. An artificially created metallic element with the chemical symbol Tc.
  16. 28. Humans have known about this metal for around 4000 years. It can be alloyed with copper to make bronze.
  17. 29. Discovered by Humphrey Davy in 1808, this element is essential for good bone health.
  18. 31. An unreactive metal frequently used to make jewellery.
  19. 32. A non-metal discovered by Jons Jacob Berzelius in 1817, its name is derived from 'selene', the Greek name for the Moon.
  20. 33. The major use of this element is in catalytic converters for cars. It has an atomic mass of 103.
  21. 34. A very rare metal discovered in 1783 in Sibiu, Romania. It has an atomic number of 52.
  22. 37. The most reactive halogen, top of Group 7.
  23. 38. The name of this Group 1 element is derived from the English word 'potash'.
  24. 39. A Group 3 metal used for making airplanes, cans and for wrapping your sandwiches.
  25. 40. First detected in the Sun’s corona, its name comes from the Greek word for sun.
  26. 42. This inert Nobel gas makes up 1% of the Earth’s atmosphere. Used in double-glazing and low-energy lightbulbs.
  27. 45. The most abundant element in the Earth’s atmosphere.
  28. 46. A soft Group 1 metal that ignites in the air and reacts violently with water. More reactive than potassium.
  29. 54. A colourless, odourless gas, used to make bright and colourful lights.